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ASTM-D2331:2008 Edition(Redline)

ASTM-D2331:2008 Edition(Redline)

$26.65

D2331-08 Standard Practices for Preparation and Preliminary Testing of Water-Formed Deposits (Redline)

Published By Publication Date Number of Pages
ASTM 2008 6
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Significance and Use

Deposits in piping from aqueous process streams serve as an indicator of fouling, corrosion or scaling. Rapid techniques of analysis are useful in identifying the nature of the deposit so that the reason for deposition can be ascertained.

Possible treatment schemes can be devised to prevent deposition from reoccurring.

Deposits formed from or by water in all its phases may be further classified as scale, sludge, corrosion products or biological deposits. The overall composition of a deposit or some part of a deposit may be determined by chemical or spectrographic analysis; the constituents actually present as chemical substances may be identified by microscope or X-ray.

1. Scope

1.1 These practices provide directions for the preparation of the sample for analysis, the preliminary examination of the sample, and methods for dissolving the analytical sample or selectively separating constituents of concern.

1.2 The general practices given here can be applied to analysis of samples from a variety of surfaces that are subject to water-formed deposits. However, the investigator must resort to individual experience and judgement in applying these procedures to specific problems.

1.3 The practices include the following:

1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For a specific warning statement, see Note 2.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

D887 Practices for Sampling Water-Formed Deposits D932 Test Method for Iron Bacteria in Water and Water-Formed Deposits D933 Practice for Reporting Results of Examination and Analysis of Water-Formed Deposits D934 Practices for Identification of Crystalline Compounds in Water-Formed Deposits By X-Ray Diffraction D1129 Terminology Relating to Water D1193 Specification for Reagent Water D1245 Practice for Examination of Water-Formed Deposits by Chemical Microscopy D2332 Practice for Analysis of Water-Formed Deposits by Wavelength-Dispersive X-Ray Fluorescence E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves

Keywords

atomic absorption; crystallographic examination; deposits; microscopy; sample preparation; scale; spectrographic analysis ; x-ray diffraction; x-ray fluorescence; Aluminum content; Calcium content–water; Carbonate content; Copper content–water; Iron content–water; Magnesium content–water; Mass spectrometry–water; Phosphate content–water applications; Silica content; Specimen preparation (for testing)–water testing; Spectrographic analysis; Sulfate content–water; Water-formed deposits;

ICS Code

ICS Number Code 13.060.60 (Examination of water for physical properties)

DOI: 10.1520/D2331-08 ASTM International is a member of CrossRef.

Citing ASTM Standards

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